CN1261699C - Dynamic ball bearing with V-shaped gas-collecting channel and its gas-collecting channel processing method - Google Patents
Dynamic ball bearing with V-shaped gas-collecting channel and its gas-collecting channel processing method Download PDFInfo
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- CN1261699C CN1261699C CN 200310107614 CN200310107614A CN1261699C CN 1261699 C CN1261699 C CN 1261699C CN 200310107614 CN200310107614 CN 200310107614 CN 200310107614 A CN200310107614 A CN 200310107614A CN 1261699 C CN1261699 C CN 1261699C
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Abstract
The present invention discloses a dynamic pressure bearing and a processing method of pneumatic troughs thereof, particularly a dynamic pressure sphere bearing with V-shaped pneumatic troughs and a processing method of the pneumatic troughs. The dynamic pressure ball bearing is composed of a bearing bowl (1) and a hemispherical sphere head (2), wherein a plurality of annular troughs (2-1) are arranged on the hemispherical surface of the sphere head, the annular troughs are mutually parallel and are perpendicular to a rotating shaft (2-3) of the sphere head, a plurality of V-shaped pneumatic troughs (2-2) uniformly distributed are communicated between the annular troughs and the upper end surfaces of the annular troughs and the sphere head, and ventilation holes (2-4) are arranged on the points between the outer surface and the inner surface of the bearing bowl corresponding to the annular troughs. The present invention solves an unfavorable defect of dynamic pressure bearing lubrication and has the advantages of reasonable design, reliable work, low price and easy popularization and implementation. The present invention also provides the processing method of the pneumatic troughs of the dynamic pressure sphere bearing with the pneumatic troughs, which has the steps that the sphere head is cleaned, a layer of uniform metallic layer or a diamond film is plated on the hemispherical surface of the ball head, and the pneumatic troughs are processed on the surface of a working layer in a mask etching way.
Description
Technical field: the present invention relates to a kind of hydraulic bearing, can be used for the main shaft of lathe or other precision optical machinery.
Background technique: the constituent elements of hydrostatic bearing is more at present, need optional equipments such as oil pump, so cost is higher, can't use in some occasion, and common hydraulic bearing exists lubricated unfavorable defective between the friction pair.
Summary of the invention: in order to overcome the lubricated unfavorable defective between the existing hydraulic bearing friction pair, provide a kind of hydraulic bearing that can between friction pair, form air film when rotated, to solve the lubricated unfavorable defective of hydraulic bearing.The present invention is achieved by following proposal: a kind of dynamic pressure ball bearing with " V " shape pneumatic trough, it is made up of cup 1 and hemispheric bulb 2, have several annular grooves 2-1 on the hemisphere surface of bulb 2, parallel to each other and between the annular groove 2-1 perpendicular to the running shaft 2-3 of bulb 2, be communicated with several equally distributed " V " shape pneumatic troughs 2-2 between the annular groove 2-1 and between the upper-end surface of annular groove 2-1 and bulb 2, have vent 2-4 with annular groove 2-1 corresponding section between the outer surface of cup 1 and the internal surface.When bulb 2 when Fig. 1 overlooks to the counter clockwise direction high speed rotating, air is collected among the pneumatic trough 2-2, flex point place at pneumatic trough forms the annular space air film that can bear pressure, bulb 2 is high speed rotating under state of suspension just, do not rub with cup 1, also just solved the lubricated unfavorable defective of hydraulic bearing.In addition because the existence of annular space air film, among the present invention the running shaft 2-3 of bulb 2 swing less, shake and beat also lessly, can reach very high running accuracy.That the present invention has is reasonable in design, reliable operation, with low cost and be easy to the advantage of promotion and implementation.
The present invention also provides another kind to have the dynamic pressure ball bearing of " V " shape pneumatic trough, it is by top bearing shell 3, lower bearing 4 and spherical bulb 5 are formed, top bearing shell 3 and lower bearing 4 are fixed as one, bulb 5 is located in the cavity that top bearing shell 3 and lower bearing 4 fastened, have several annular grooves 5-1 on the spherome surface of bulb 5, parallel to each other and between the annular groove 5-1 perpendicular to the running shaft 5-3 of bulb 5, be communicated with several equally distributed " V " shape pneumatic troughs 2-2 between the annular groove 5-1, have vent 3-1 with annular groove 5-1 corresponding section between the inner and outer surface of top bearing shell 3 and lower bearing 4.
Description of drawings: Fig. 1 is the structural representation of embodiment of the present invention one, and Fig. 2 is the structural representation of mode of execution two.
Embodiment one: specify present embodiment below in conjunction with Fig. 1.It is made up of cup 1 and hemispheric bulb 2, have several annular grooves 2-1 on the hemisphere surface of bulb 2, parallel to each other and between the annular groove 2-1 perpendicular to the running shaft 2-3 of bulb 2, be communicated with several equally distributed " V " shape pneumatic troughs 2-2 between the annular groove 2-1 and between the upper-end surface of annular groove 2-1 and bulb 2, have vent 2-4 with annular groove 2-1 corresponding section between the outer surface of cup 1 and the internal surface.
Above-mentioned pneumatic trough with dynamic pressure ball bearing of " V " shape pneumatic trough is processed realization by following step: one, clean with acetone or alcohol wash the surface of bulb 2; Two, on the hemisphere surface of bulb 2, plate layer of even metal layer or diamond film having as working lining; Three, the mask etching and processing goes out pneumatic trough 2-2 on the surface of working lining.
Above-mentioned pneumatic trough with dynamic pressure ball bearing of " V " shape pneumatic trough is processed realization by following step: one, clean the surface clean of bulb 2 with acetone or alcohol; Two, on the hemisphere surface of bulb 2, apply one deck sensitive material; Three, hide the shading template on the surface of sensitive material, the shading template is to cover or only to manifest the position of pneumatic trough and the template of shape on the hemisphere surface of bulb 2; Four, the hemisphere surface of bulb 2 being carried out sensitization handles; Five,, thereby erode away pneumatic trough or plate out the pneumatic trough that metal layer forms low level after handling the sensitive material come off by sensitization and disposing.
Embodiment two: specify present embodiment below in conjunction with Fig. 2.It is made up of top bearing shell 3, lower bearing 4 and spherical bulb 5, top bearing shell 3 and lower bearing 4 are fixed as one by screw 6, bulb 5 is located in the cavity that top bearing shell 3 and lower bearing 4 fastened, have several annular grooves 5-1 on the spherome surface of bulb 5, parallel to each other and between the annular groove 5-1 perpendicular to the running shaft 5-3 of bulb 5, be communicated with several equally distributed " V " shape pneumatic troughs 2-2 between the annular groove 5-1, have vent 3-1 with annular groove 5-1 corresponding section between the inner and outer surface of top bearing shell 3 and lower bearing 4.The running accuracy of bulb is higher than mode of execution one in the present embodiment.
Claims (2)
1, a kind of dynamic pressure ball bearing with " V " shape pneumatic trough, it is made up of cup (1) and hemispheric bulb (2), it is characterized in that having several annular grooves (2-1) on the hemisphere surface of bulb (2), parallel to each other and between the annular groove (2-1) perpendicular to the running shaft (2-3) of bulb (2), be communicated with several equally distributed " V " shape pneumatic troughs (2-2) between the annular groove (2-1) and between the upper-end surface of annular groove (2-1) and bulb (2), have vent (2-4) with annular groove (2-1) corresponding section between the outer surface of cup (1) and the internal surface.
2, a kind of dynamic pressure ball bearing with " V " shape pneumatic trough, it is by top bearing shell (3), lower bearing (4) and spherical bulb (5) are formed, top bearing shell (3) and lower bearing (4) are fixed as one, bulb (5) is located in the cavity that top bearing shell (3) and lower bearing (4) fastened, it is characterized in that having several annular grooves (5-1) on the spherome surface of bulb (5), parallel to each other and between the annular groove (5-1) perpendicular to the running shaft (5-3) of bulb (5), be communicated with several equally distributed " V " shape pneumatic troughs (2-2) between the annular groove (5-1), have vent (3-1) with annular groove (5-1) corresponding section between the inner and outer surface of top bearing shell (3) and lower bearing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310107614 CN1261699C (en) | 2003-10-15 | 2003-10-15 | Dynamic ball bearing with V-shaped gas-collecting channel and its gas-collecting channel processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310107614 CN1261699C (en) | 2003-10-15 | 2003-10-15 | Dynamic ball bearing with V-shaped gas-collecting channel and its gas-collecting channel processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1529064A CN1529064A (en) | 2004-09-15 |
| CN1261699C true CN1261699C (en) | 2006-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310107614 Expired - Fee Related CN1261699C (en) | 2003-10-15 | 2003-10-15 | Dynamic ball bearing with V-shaped gas-collecting channel and its gas-collecting channel processing method |
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| CN (1) | CN1261699C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141688B (en) * | 2014-04-23 | 2017-09-01 | 河北工程大学 | hydrodynamic sliding bearing device with automatic cleaning function |
| CN104141687B (en) * | 2014-04-28 | 2017-07-07 | 石家庄铁道大学 | A kind of hydrodynamic sliding bearing device with automatic cleaning function |
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2003
- 2003-10-15 CN CN 200310107614 patent/CN1261699C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1529064A (en) | 2004-09-15 |
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Owner name: ZHEJIANG JUNENG HOLDINGS LIMITED Free format text: FORMER OWNER: HARBIN INSTITUTE OF TECHNOLOGY Effective date: 20080912 Owner name: ZHEJIANG GUANXI ELECTRIC CO., LTD. Free format text: FORMER OWNER: ZHEJIANG JUNENG HOLDINGS LIMITED Effective date: 20080912 |
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Effective date of registration: 20080912 Address after: 4D 63, nine Ring Road, Jianggan District, Zhejiang, Hangzhou: 310019 Patentee after: ZHEJIANG GUANXI ELECTRIC & MOTOR Co.,Ltd. Address before: Hangzhou City, Zhejiang Province, Binjiang District Jiangnan Road No. 3888 Sunyard building seven floor, zip code: 310053 Patentee before: Zhejiang Energy Holdings Ltd. Effective date of registration: 20080912 Address after: Hangzhou City, Zhejiang Province, Binjiang District Jiangnan Road No. 3888 Sunyard building seven floor, zip code: 310053 Patentee after: Zhejiang Energy Holdings Ltd. Address before: No 92, West Da Jie street, Nangang District, Heilongjiang, Harbin: 150001 Patentee before: Harbin Institute of Technology |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060628 Termination date: 20161015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |